An oven burns gas to cook food. What kind of energy transition is happening in the oven?
A. Light energy to chemical energy
B. Chemical energy to heat energy
C. Sound energy to heat energy
D. Heat energy to light energy

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

answer: all : )

explanation:

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )